GRPC helps remove the complexity to deal with the HTTP protocol, further for highly scalable systems we can have streaming functionality which is quite difficult to implement on top of bare HTTP 2.0. Also the protobuff helps reduce data size and hence faster communication. Review collected by and hosted on G2.com.

GRPC browser support is a very long known issue. That is the only reason that is holding back GRPC for its glory over REST, and hence need to expose REST interfaces for public facing API. Hence the extra effort required to adapt HTTP 1.1 to GRPC based is always an overhead. Review collected by and hosted on G2.com.